In this Battle of Britain : Untold Story we look at Identification Friend or Foe Mk II (IFF Mk II) which was a radio transponder fitted to RAF aircraft in 1940. It returned a unique radar signal to Britain’s Chain Home stations, distinguishing friendly planes from enemy aircraft during the Battle of Britain. Untold Stories is a series of short films, narrated by our own experts, that uncover the remarkable lesser-known stories of the Battle of Britain while spotlighting the people, tactics, and

The U.S. Navy has awarded BAE Systems a $62 million contract to set up a new service depot capability for the E-2D Advanced Hawkeye Identification Friend or Foe (IFF) interrogator system at the Fleet Readiness Center Southwest in San Diego, California. The initiative will bring testing, diagnostic, and repair capabilities for the AN/APX-122A IFF system closer to frontline operations, helping improve system availability while potentially reducing maintenance turnaround and lifecycle costs. IFF te